nah, how can I put this,
guy a girl finds attractive gives a compliment = great, she gets really happy, wants to talk, big smile on the face, little giggles, gives you her number
guy she finds unattractive give a compliment = makes her feel uncomfortable, she is not interested
it's the same as this, you're at a beach
this girl walks up to you and says, hi I think you're handsome, how do you feel, and how do you respond?
ok, now, you're at a beach

this girl walks up to you and says, hi I think you're handsome, how do you feel, and how do you respond?
ok, now that you got that analogy going, you should know that what girls find attractive and unattractive is far more subjective from girl to girl, and one girl might find you extremely attractive beyond any guy she has ever met, while another girl might find you hideously unbearable to be around
as for being needy, complimenting or not complimenting on the opener has nothing to do with being needy, if you are needy you are needy, if you are not needy, you are not needy, it is as simple as that, if you don't understand what neediness is, then you might be coming from a needy place, you can hide your intentions and do so out of neediness just as easy as show your intentions and do so out of neediness (but either way if you are going to have sex with a girl, the dick has to leave the pants at some point)